What makes "good" ice cream? Why does ice cream float in an ice cream soda? What ingredients are needed to make ice cream? Find out the answers to this and more by joining us. We will make some ice cream, learn some science, and indulge in an ice-cold treat! For teens & tweens, ages 8 to 18 years old. Limited to 15 participants. Please call North Beach Branch Library for pre-registration, Tel: (415)355-5626.